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Search: Posts Made By: ponchorob
Forum: Pontiac - Street 07-25-2023, 06:30 PM
Replies: 816
Views: 63,727
Posted By ponchorob
428

..... still interesting that the ram air 4 cam works good in a 455 or in a 400 with short gear but maybe not so ideal in a 428,,,,,
Forum: EFI Tech 08-06-2022, 12:58 PM
Replies: 1
Views: 894
Posted By ponchorob
Sniper o2 sensor

Holley sniper o2 sensor....choices
Holley part 554-155 they say its a Bosch sensor ,,,could i use an other brand...or is the holley a special sensor for the sniper only..? i read it should be a...
Forum: Pontiac - Race 07-28-2022, 02:52 AM
Replies: 10
Views: 828
Posted By ponchorob
Thanks for all the input...will look at the...

Thanks for all the input...will look at the engine closely next week..
Forum: Pontiac - Race 07-27-2022, 04:34 PM
Replies: 10
Views: 828
Posted By ponchorob
So thats interesting so you think in your case ...

So thats interesting so you think in your case it was the cam ..despite i dont understand the reason....i also cant believe that all 4pistons or rings have the same damage since i ill have excatly...
Forum: Pontiac - Race 07-27-2022, 02:58 PM
Replies: 10
Views: 828
Posted By ponchorob
Low compression on left cylinder bank

Have stock 65" 389 engine... engine has extreme blow by through valve cover dipstick tube and also smoke under the intake manifold..measured compression passenger cylinder bank has solid 175 psi on...
Forum: Pontiac - Race 04-15-2022, 04:58 PM
Replies: 3
Views: 717
Posted By ponchorob
Exessive Crankshaftplay cause for transmission failure

....is it possibble that to much crank play pushes on the torque converter and further on the inputshaft and make damage inside the autonatic trans mission. I only know it the other way or this only...
Forum: Pontiac Business Entities Exchange 02-27-2022, 03:16 PM
Replies: 10
Views: 4,049
Posted By ponchorob
Had same problem with butler we only ordered...

Had same problem with butler we only ordered parts that were stock on their site and they took our money and after a few days the told us that some parts are suddenly not in stock....im from oversea...
Forum: Pontiac - Race 01-21-2022, 01:26 PM
Replies: 18
Views: 2,107
Posted By ponchorob
Mike your 67 428 with 3.55 gear have you ever...

Mike your 67 428 with 3.55 gear have you ever run on the track any quartermile results....?
Forum: Pontiac - Race 01-20-2022, 04:34 AM
Replies: 18
Views: 2,107
Posted By ponchorob
Guys thanks fot all your opinions an Mike thanks...

Guys thanks fot all your opinions an Mike thanks for your detailed info ..
Forum: Pontiac - Race 01-19-2022, 07:18 PM
Replies: 18
Views: 2,107
Posted By ponchorob
....i mean with my 2500 converter it should run a...

....i mean with my 2500 converter it should run a lot faster with 3.90 vers 3.55 but maybe im wrong..
Forum: Pontiac - Race 01-19-2022, 06:56 PM
Replies: 18
Views: 2,107
Posted By ponchorob
Mike davis 3.73 to 4.10 results are interesting...

Mike davis 3.73 to 4.10 results are interesting but maybe his converter stalls a lot higher than mine...so theres not so much difference
Forum: Pontiac - Race 01-19-2022, 04:25 PM
Replies: 18
Views: 2,107
Posted By ponchorob
Have a th400 ....

Have a th400 ....
Forum: Pontiac - Race 01-19-2022, 04:10 PM
Replies: 18
Views: 2,107
Posted By ponchorob
Have a th400 ....

Have a th400 ....
Forum: Pontiac - Race 01-19-2022, 02:04 PM
Replies: 18
Views: 2,107
Posted By ponchorob
428 street strip gear

428 with 13 heads 60919 cam rhoads lifters 9.6 compression. 67 firebird 2500 Converter... thought about using a 3.90 gear...for street strip.... if a take or go back to 3.42 ill think i would runner...
Forum: Pontiac - Street 01-08-2022, 08:09 AM
Replies: 82
Views: 12,044
Posted By ponchorob
60919

.....ill think Tc doing good has the potential to run as low to 11. 60 to 11.70 when lookin tryin.to science out...with the 3.73 gear ..dont know which converter is he running....dont know if...
Forum: Pontiac - Street 01-05-2022, 06:29 PM
Replies: 82
Views: 12,044
Posted By ponchorob
So in his case he got 104 when installed dot to...

So in his case he got 104 when installed dot to dot and if he wants to follow the camcard which says 108 he needs to retard 4 degrees on the crank...
Forum: Pontiac - Street 01-05-2022, 03:45 PM
Replies: 82
Views: 12,044
Posted By ponchorob
So gach what does that mean now? Was the cam now...

So gach what does that mean now? Was the cam now Advanced another 4 degrees or so installed that it works out 104 or was the cam installed do to dot and the degree wheel shows 104..when it should...
Forum: Pontiac - Street 01-04-2022, 09:46 AM
Replies: 82
Views: 12,044
Posted By ponchorob
Tc any further improvement with crower 60919 from...

Tc any further improvement with crower 60919 from 11.97 at 111.6mph
Forum: Pontiac - Street 12-19-2021, 03:21 PM
Replies: 110
Views: 17,057
Posted By ponchorob
..good results but seems for me a but high for...

..good results but seems for me a but high for such a tame cam ....
Forum: Tri-Power Tech 11-24-2021, 06:42 PM
Replies: 2
Views: 1,756
Posted By ponchorob
..

....thanks for your response..good point was not shure if the bigger size requires to regulate to float level some...i assumed that the bigger size would fill the bowl faster during full...
Forum: Tri-Power Tech 11-24-2021, 12:32 PM
Replies: 2
Views: 1,756
Posted By ponchorob
Tripower needle seat size

Have a 421 with ramair iv cam..discovered the all 3 tripower carbs have 0.101 needle seat size ..normally the the outercarbs should have 0.68 .stock...its a 64 tripower.... dont know if i should...
Forum: Tri-Power Tech 11-23-2021, 06:32 AM
Replies: 1
Views: 1,278
Posted By ponchorob
Centercarb power piston spring

...want to know how many coils the power pistonspring has in stock form ..is a 65 tripower center carb..
Forum: Pontiac - Race 11-22-2021, 01:38 PM
Replies: 8
Views: 1,256
Posted By ponchorob
Had to test them .....but must order a...

Had to test them .....but must order a springtester before..but also not cheap..lol
Forum: Pontiac - Race 11-22-2021, 01:05 PM
Replies: 8
Views: 1,256
Posted By ponchorob
Valve springs

Dont know about the spring spec... had to remove them and test the pressure rates....so i know what i got......since i dont have a mechanical cam in the moment only hydraulic in the garage .. ill...
Forum: Pontiac - Race 11-22-2021, 12:25 PM
Replies: 8
Views: 1,256
Posted By ponchorob
Solid valve spring vers hydraulic

Can anyone explain whats the difference between solid vers hydraulic valve springs....got heads with a solid valve spring set up.. want to run a hydraulic cam now ..so is it possibble to run the...
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