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Forum: Suspension TECH Yesterday, 08:20 PM
Replies: 8
Views: 214
Posted By Formulas
was the rear, my cars have disc in front,

was the rear, my cars have disc in front,
Forum: Suspension TECH Yesterday, 05:16 PM
Replies: 8
Views: 214
Posted By Formulas
recently i was evaluating old used drums for...

recently i was evaluating old used drums for keepers or tossers, i noticed a ring around a wheel stud in the face of a drum, only thing i can come up with that caused it is a lug nut bottomed out...
Forum: Pontiac - Street 09-21-2024, 11:52 AM
Replies: 3
Views: 228
Posted By Formulas
Its been a long time since i have had to science...

Its been a long time since i have had to science out 4speed parts not playing well with each other but usually if things were wonky in pedal travel i had the wrong length throughout bearing

Oh...
Forum: Pontiac - Street 09-20-2024, 02:45 PM
Replies: 9
Views: 394
Posted By Formulas
If iam not mistaken that cam has less seat...

If iam not mistaken that cam has less seat duation than a 068 cam and being sub 220 intake duration its going to run (power band) like a bone stock 455 with more torque everywhere, i don't think...
Forum: Pontiac - Street 09-20-2024, 05:05 AM
Replies: 13
Views: 474
Posted By Formulas
if you guys notice the dorman caps do not have...

if you guys notice the dorman caps do not have the integral fiber reinforcement some of the ones linked DO..

Dorkman should be used for painting and storage
Forum: Pontiac - Street 09-19-2024, 06:05 PM
Replies: 37
Views: 1,511
Posted By Formulas
I took a bone stock 70/350 2bbl 4speed 3.31 gear...

I took a bone stock 70/350 2bbl 4speed 3.31 gear and put in a 204/204 - 110 Erson cam and quadrajet and that made a big difference... you dont have to follow standard big cid. cam recomendations a...
Forum: Pontiac - Street 09-19-2024, 05:53 PM
Replies: 52
Views: 2,231
Posted By Formulas
you can go by the new mark and time it presumably...

you can go by the new mark and time it presumably correctly and enjoy how it is supposed to run while waiting on new part (sanity check)
Forum: Pontiac - Street 09-18-2024, 02:32 PM
Replies: 52
Views: 2,231
Posted By Formulas
when i posted about 1.65 rockers being installed...

when i posted about 1.65 rockers being installed i was just planting a seed, immediately they are not a running problem but i would almost bet the pushrods are grinding on the heads and spring...
Forum: Pontiac - Street 09-18-2024, 06:59 AM
Replies: 52
Views: 2,231
Posted By Formulas
A late addition of 1.65 rockers? tells me...

A late addition of 1.65 rockers?

tells me the heads were not prepared for them correctly.
Forum: Pontiac - Street 09-17-2024, 06:25 PM
Replies: 2
Views: 154
Posted By Formulas
If you drilled where i think you did, straight...

If you drilled where i think you did, straight across from lower IFR's in towards main body into primary bore? yeah not good
Forum: Pontiac - Street 09-17-2024, 06:41 AM
Replies: 14
Views: 526
Posted By Formulas
https://www.ebay.com/itm/196463606685?mkcid=16&mke...

https://www.ebay.com/itm/196463606685?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=lUanJEjlSI-&sssrc=4429486&ssuid=syfGBDXRS5K&var=&widget_ver=artemis&media=COPY
Forum: Pontiac - Street 09-16-2024, 12:32 PM
Replies: 28
Views: 1,308
Posted By Formulas
Missing? ya got me i just pulled cover off i did...

Missing? ya got me i just pulled cover off i did pluck out a couple pieces of the cover on top of silicone but did not disturb any silicone on 990
Forum: Pontiac - Street 09-16-2024, 11:05 AM
Replies: 28
Views: 1,308
Posted By Formulas
I THINK the failure point on the 990 unit LEFT...

I THINK the failure point on the 990 unit LEFT pic.. that Shiny blue boxed is that chip you can see darkness around its periphery which is indicative of elevated thermal activity ... could of been...
Forum: Pontiac - Street 09-16-2024, 08:42 AM
Replies: 7
Views: 366
Posted By Formulas
to answer your question yes you still will get...

to answer your question yes you still will get mechanical adv.

two methods of advance mech and vac. they are independent in operation you alter one does not affect the other, the results of each...
Forum: Pontiac - Street 09-16-2024, 08:10 AM
Replies: 7
Views: 366
Posted By Formulas
It just affects vacuum advance nothing else, ...

It just affects vacuum advance nothing else, with one exception where the plate locks down (rotationally) the breaker plate or magnetic pole will affect base (initial) timing so all you have to do...
Forum: Pontiac - Street 09-15-2024, 04:54 PM
Replies: 28
Views: 1,308
Posted By Formulas
if you use them as intended i am 100% correct.....

if you use them as intended i am 100% correct.. lived it.. no matter how much dribble you provide will not change my experience, thank you for roundabout admitting your stuff that is so great just...
Forum: Pontiac - Street 09-15-2024, 03:17 PM
Replies: 28
Views: 1,308
Posted By Formulas
blah blah blah.. this is a information thread...

blah blah blah.. this is a information thread that may interest a few about the innards of a certain electronic part its not a poll on what you think about your points/MSD situation that spends more...
Forum: Pontiac - Street 09-15-2024, 10:03 AM
Replies: 28
Views: 1,308
Posted By Formulas
BTW.. these modules are flooded with a silicone...

BTW.. these modules are flooded with a silicone gel that does not cure much like implants used on humans.... this keeps moisture and oxygen at bay while having elasticity for heat and cold expansion
Forum: Pontiac - Street 09-14-2024, 08:46 PM
Replies: 180
Views: 9,534
Posted By Formulas
What time frame was this Paul..? I dont recall...

What time frame was this Paul..? I dont recall the offering... could of been a time i had spare blocks and blew it off
Forum: Pontiac - Street 09-14-2024, 05:21 PM
Replies: 28
Views: 1,308
Posted By Formulas
Modules = never left me stranded or a hiccup at...

Modules = never left me stranded or a hiccup at the track..

I am old enough that i remember the HEI was a new fangled system my car had points and honestly a daily driver that if you wish to keep...
Forum: Pontiac - Street 09-14-2024, 10:43 AM
Replies: 28
Views: 1,308
Posted By Formulas
Yeah early mid 70's was not exactly a pinnacle...

Yeah early mid 70's was not exactly a pinnacle moment for at the time micro or mini circuitry, electronics are evolving at a fast clip even today..

today things are firstly built as cheap as...
Forum: Pontiac - Street 09-14-2024, 09:54 AM
Replies: 28
Views: 1,308
Posted By Formulas
one module that i tested good is a 990GM cept its...

one module that i tested good is a 990GM cept its white in color, i will be using that one over my 2 other generic units..

did you dwell test the ACCELL units? i have one in another engine but...
Forum: Pontiac - Street 09-14-2024, 09:40 AM
Replies: 28
Views: 1,308
Posted By Formulas
the one thats more intact the one you dont like...

the one thats more intact the one you dont like is the 990 on the left the lid i ripped off had white ink stampings and raised cast in GM
Forum: Pontiac - Street 09-13-2024, 08:23 PM
Replies: 28
Views: 1,308
Posted By Formulas
Inside HEI module

Well i had 5 used HEI modules so i put a spare dist in a vice hooked up power to test.....two didnt make the grade... one was a 990 unit its the one more intact i cut it open with a small rotary...
Forum: Pontiac - Street 09-13-2024, 11:59 AM
Replies: 9
Views: 450
Posted By Formulas
Use the search feature on this site for results...

Use the search feature on this site for results with that cam in a 400/428 also pay attention to dyno results with the crower 60916 cam which is similar..

not bad combos.

you would need a...
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