IA2 block / 505 CID
Edelbrock cylinder heads / about 320 cfm at .700" lift
10:1 compression
Victor intake / 1-inch open spacer
( Intake carb flange milled down 0.650" for additional hood clearance, therefore closer to 1/2-inch open spacer for dyno testing )
Precision Racing Components custom Holley HP950 carburetor
2-inch headers
Current cam is a Ultradyne solid roller
.020 288/292
.050 255/259
0.4176" lobe lift / 1.65-1.6 rocker ratio / .022" lash
110 LSA / 106 ICL
Depending on the pull, it's now a 625-630 HP engine.
The best number was 635 HP.
Peak torque at 4400/4500 rpm and peak power at 5700/5800 rpm.
Start of the recorded numbers at 4100 rpm the torque was 627/628 ft.lbs.
It carried over 600 ft.lbs torque from 4100 rpm up thru 5400/5500 rpm.
We dyno'd with the same intake manifold and carb as used before a recent cam change was made. But I'm now running direct port fuel injection.
The shop was not equipped to dyno with my FI system.
Outdated but further info on car:
https://www.hotrod.com/articles/0712...tiac-trans-am/
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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 )
Old information here:
http://www.hotrod.com/articles/0712p...tiac-trans-am/
Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine)
5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension
https://www.youtube.com/watch?v=qDoJnIP3HgE