Thread: Recommendations for my 468?

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Guys,

I have a '69 Nova with a 468 (Gen V block, stock), Merlin oval-port heads, a Weiand 177 blower (3 lbs boost), Comp Cams 286H, a Bill Mitchell Hardcore 870 carb (80 front, 87 rear), and Hooker Pro-comps going into 3.5" exhaust all the way out the back. TH400 and a 12-bolt with 4:10 gears.

Bottom line: I'm looking to tone the engine down a bit for the street, possibly even selling the blower to help redo the interior. I would like to get to a vacuum secondary carb rather than the double-pumper as well, and maybe move to a 3" exhaust to help quiet it down a little.

Would someone recommend an intake/carb solution that might work, and whether a cam change might be needed as well? I was going to scrap the whole motor and start fresh, but I'm wondering if I can't use what I have as a good starting point without spending too much money.

Thanks...

You'll probably need 9.5:1 to 11.0:1 static compression ratio for that cam to work naturally aspirated. If your motor qualifies for the c.r., bolt on a RPM manifold with the BM 870.

I'm not the resident BBC guy though. Maybe Pat will be along to tune you up.

Thanks Tech! You've helped me in the past and I appreciate it...