[Formulajones]

I experienced that Paul some 25 years ago.

Bought the 330cfm Eddy round port CNC ported heads and his custom spec'd hydraulic roller camshaft for a 455 build. I put it together with custom pistons, small ring package, Eagle rods, stock crank, 10.5:1 compression, 2" Hooker Super Comp headers, and then proceeded to try 3 different intakes on the dyno with 2 different spacer combos. He said it's a 600hp engine all day long.

I felt it should have been, but we were also on a conservative and what I was told a very accurate DTS dyno that was used to dial in engines this person used to get his engines ready for engine master challenges (friend of dad)

Well the best intake and spacer combo barely got above 500hp but it did make 600 ft lbs. of torque. The engine however did run the number at the track we were after clicking off mid 11's at 115-ish mph in dad's 4100 lbs. GTO.

Funny part, we later found out when those same heads were put on Tony Bischoff's flow bench, they didn't flow 330 cfm