dub racing

Hi guys
I am just about to buy carby for my 351 c the cam is a comp cams with 256 and 266 @50 .589 and .615 lift heads are 4v with toungues and chamber work ,tfc manifold and pacemaker 4 into 1s the motor will be doing club sprints at first in xw till i decide if im going to do road rallies or group nc when i will go h beams roller cam and few other things to make it bit more radical anyway dont know if i should get the 750 hp holley or the 830 hp holley any suggestions guys thx for any help .
cheers falcon
(prays that its not a grenata to the cleveland gods)

george 351

I've got a similar cam to yours with 108 lsa,filled 4v's,6" rods and 4.11's and mine ran best with an 830 annular.I'm currently runnind an 850 downleg but doesn't run as smooth down low.

shard351

I'd say a 750 mighty demon.

But if you are looking at Nc then stick with the 830 holley.

I'll look out for you on the track!!!

no1gxl

i built that exact combination (excellent choice of camshaft) for a mate's landau . we had a 850 d/pumper holley with milled choke housing on it.The engine made great torque and power! we then fitted my barry grant mighty demon 850 which is also a double pumper and the engine had very sharp throttle response with stronger top end than the holley.He then sold the holley in order to buy a 850 mighty demon..!!

dub racing

Thx guys
If i could run barry grant i would run 825 race demon but dont think i can because of rules so i think i will drop into speed shop on the way home from work tommorow and buy 830 hp .
cheers dub racing