The engine is a 254 CI inline 6, intake bosses removed,& had my upper lumps installed.
It has been a while & several camshaft swaps, but the cam was about 236 degrees duration @ .050 lift was around .560 lift, lobe center of 110.
When you can have 220 PSI of cranking pressure,you know the cam was not that big in the duration department.

Exhaust were Clifford dual headers into a y pipe into single 2.5" to the rear. 3" would have been better.
Muffler was a Dynomax 14" muffler mandrel pipe inside muffler perforated to quite it down,it was pretty loud IMO.

I was running the Clifford side draft manifold w/three 48 MM DCOE Webbers. (Too big BTW) better to use 45's
It was a hard running engine,really torquey, I never went to a track but I would have to say it ran around 13 flat in the 1/4 maybe high 12's if I had just set it up for track use.

Car weighed 3500 lbs front & rear anti sway bars,Koni shocks for better handleing. So it was never set-up fot track use.

MBHD


12 port SDS EFI