2000GT4.6

What would a 1969 351 W with a 750 holley, stock ported heads, slightly higher compression, eldbrock performer RPM 2 intake, and a very agressive cam make horsepower wise??

I am not looking for a exact number here, just a ballpark. What is the best case senario for flywheel horsepower?

uedlose

300-350

JD1969

The very agressive cam (hard to say how agressive without specs) will not get you much on stock ported heads. I think you are looking at a bit over 300 rwhp as well

fordfanboi

The Holley 750 will be just fine. RPM is dual plane - which means TORQUE over HORSEPOWER. If you want bigger HP numbers and to run a high HP cam, go with a single plane intake. ( Victor Jr. ) The Heads are also gonna be a restriction, but at least you're running a '69 block. Compression is worth 3% HP per point. How much higher is it? Retarding the cam will also give more HP ( and decrease TQ ).

Using Dyno2003 I plugged in the 351w, ported heads, dual plane intake, 9.5:1 compression, small tube headers, and a 0.600 lift roller cam and came up with 326 FW HP and 376 FW TQ. Going single plane bumps the HP up another 15.

mkspeed26

i agree, 300-350, but it has TONS of potential. stroke to 408, some AFR225s, nice big cam and single plane intake, u could get 500 hp pretty easily

fordfanboi

You been peeking under my hood?!?! lol

mkspeed26

haha lmfao no actually i was putting out my future plans

tinman

I built a 351W years ago that ran 11.70's up here in the desert of Arizona. In a 3000# car with a C-4 and 4.11 gears. On a fairly small hyd. cam BTW.
The thing sounds similar to the engine in question except we running 10 compression ( measured).
I think 400 is really pretty esay here.......