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Forum: Pontiac - Street 02-15-2024, 12:06 PM
Replies: 14
Views: 2,112
Posted By Donovan
great for consistent performance, not a power adder

since there are crossover passages in both center exhaust bowls, when you block it at the flange you still have the opportunity for crosstalk on the same bank.

fill the crossover ports in the...
Forum: Pontiac - Street 02-15-2024, 01:18 AM
Replies: 14
Views: 2,112
Posted By Donovan
Poor boy HO/RA cast iron intake

Yes you can do that and would result in the functional iron equivalent of the HO/RA intake.

I did something similar with a 234 manifold. I also have a 71 455HO setup. Once you remove the extra...
Forum: Pontiac - Street 09-22-2023, 11:50 PM
Replies: 30
Views: 1,371
Posted By Donovan
Get the ported versions up front and use your...

Get the ported versions up front and use your current manifolds, intake and exhaust. Later when you get the itch again to claim more HP you just need to bolt on headers and an RPM intake. The...
Forum: Pontiac - Street 08-03-2023, 04:07 PM
Replies: 3
Views: 257
Posted By Donovan
I saw your ad from 2017. Looked great. You...

I saw your ad from 2017. Looked great. You currently have an F intake?
Forum: Pontiac - Street 08-03-2023, 12:05 PM
Replies: 3
Views: 257
Posted By Donovan
9794234 Intake manifolds and date codes

What's the story on date code availability?

I've been watching classifieds and eBay for awhile to casually pick up a spare manifold to replace my cracked original. It's a date code E088
But I...
Forum: Pontiac - Street 07-31-2023, 09:43 PM
Replies: 82
Views: 4,081
Posted By Donovan
Sounds great! Any porting to go along on the...

Sounds great! Any porting to go along on the heads? What was your chamber size on those #17s?
I did a set of #17 heads and mine were mid 80s CC chamber, but responded well to porting even with stock...
Forum: Pontiac - Street 07-31-2023, 09:40 PM
Replies: 82
Views: 4,081
Posted By Donovan
After all the time in the hobby this is a first...

After all the time in the hobby this is a first for me, someone actually having taken a 350HO stick car down the strip. Thanks for the info I'm grateful! My 68 350HO car was an automatic and made a...
Forum: Pontiac - Street 07-30-2023, 07:01 PM
Replies: 82
Views: 4,081
Posted By Donovan
Thanks for posting! That's a lot of solid info....

Thanks for posting! That's a lot of solid info. How do these cars perform in the 1/4?
Forum: 67-69 Firebird TECH 05-19-2023, 11:02 PM
Replies: 4
Views: 590
Posted By Donovan
http://www.camaros.org/trans.shtml Scroll...

http://www.camaros.org/trans.shtml

Scroll down to see the details
Forum: 67-69 Firebird TECH 05-19-2023, 10:54 PM
Replies: 4
Views: 590
Posted By Donovan
While doing a swap I learned that Pontiac biased...

While doing a swap I learned that Pontiac biased the V8 cars off-center to make it fit. I think if you look at the steering box it's really close even so. But to accomplish this the frame mounts are...
Forum: 67-69 Firebird TECH 09-13-2022, 12:27 AM
Replies: 7
Views: 1,163
Posted By Donovan
When I installed solid aluminum body bushings it...

When I installed solid aluminum body bushings it helped clean up some tweaks in the mount locations. I didn't notice any changes in ride quality compared to the collapsed stock stuff. Except it felt...
Forum: Pontiac - Race 12-22-2021, 11:55 PM
Replies: 40
Views: 10,654
Posted By Donovan
Sure thing... this may well be the ultimate...

Sure thing... this may well be the ultimate Pontiac 350 build and it's currently under way. Spoiler, his plans include aluminum rods and heads.

Pontiac 350 Dyno Mule Disassembly....
...
Forum: 67-69 Firebird TECH 09-06-2021, 10:43 PM
Replies: 1
Views: 898
Posted By Donovan
https://www.amazon.com/dp/B000EQBR2A?tag=amz-mkt-c...

https://www.amazon.com/dp/B000EQBR2A?tag=amz-mkt-chr-us-20&ascsubtag=1ba00-01000-a0049-win10-other-smile-us000-pcomp-feature-pcomp-feature-pcomp-wm-8&ref=aa_pcomp_xcta1_xim1

My original had part...
Forum: 67-69 Firebird TECH 05-16-2021, 12:38 PM
Replies: 4
Views: 1,005
Posted By Donovan
agreed on all points! I am also surprised the...

agreed on all points! I am also surprised the cable didn't stand out too bad.

I have my tips tucked to just the ends showing as you described, it's the cleanest.
Forum: Non Pontiac Motors in Pontiacs 05-15-2021, 11:37 PM
Replies: 3
Views: 3,776
Posted By Donovan
I think it might. If you put the 2 covers up to...

I think it might. If you put the 2 covers up to each other they are very close aside from the bolt holes. If it can go SBC cover on a Pontiac head why not the other way.

I haven't done it.

Is...
Forum: 67-69 Firebird TECH 05-15-2021, 11:29 PM
Replies: 4
Views: 1,005
Posted By Donovan
1968-74 Xbody has the later square mount end...

1968-74 Xbody has the later square mount end (instead of morse) that would work well with the later and aftermarket throttle brackets. You will need to do a little work to make the pedal end fit the...
Forum: 67-69 Firebird TECH 03-10-2021, 12:49 AM
Replies: 13
Views: 1,361
Posted By Donovan
1968 V8 cars came with the curved pitman arm.

1968 V8 cars came with the curved pitman arm.
Forum: Performance Parts For Sale/Wanted 02-10-2021, 04:04 PM
Replies: 7
Views: 1,377
Posted By Donovan
SOLD

SOLD
Forum: Performance Parts For Sale/Wanted 02-06-2021, 11:09 PM
Replies: 7
Views: 1,377
Posted By Donovan
Pending... thanks Shiftydr

Pending... thanks Shiftydr
Forum: Performance Parts For Sale/Wanted 02-05-2021, 06:58 PM
Replies: 7
Views: 1,377
Posted By Donovan
message sent

message sent
Forum: Performance Parts For Sale/Wanted 02-01-2021, 11:40 AM
Replies: 7
Views: 1,377
Posted By Donovan
replied!

replied!
Forum: Performance Parts For Sale/Wanted 01-28-2021, 06:08 PM
Replies: 7
Views: 1,377
Posted By Donovan
Edelbrock P4B Quadrajet manifold

This is the unit Rocky tested awhile back. An uncommon large runner, qjet plenum P4B.

$200 plus shipping
Forum: Performance Parts For Sale/Wanted 01-28-2021, 03:58 PM
Replies: 0
Views: 516
Posted By Donovan
1980 301 small block pontiac parts

Crankshaft $50

https://www.ebay.com/itm/333868835424



#01 cylinder heads, pair $50

https://www.ebay.com/itm/333868851417
Forum: Pontiac - Street 05-19-2020, 07:59 PM
Replies: 12
Views: 1,583
Posted By Donovan
Nice... When I ran my HO intake with the...

Nice...

When I ran my HO intake with the crossover blocked off, I converted to an electric choke. This worked well too.
Forum: Pontiac - Street 05-19-2020, 07:56 PM
Replies: 12
Views: 1,583
Posted By Donovan
I didn't port match mine, but did similarly. ...

I didn't port match mine, but did similarly.

Stock 68 intake started at about 43lbs and ended up at 27.5lbs without the water crossover
32.5lbs with. It would be 39-40lbs with the HO exhaust...
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