Thread: What jets should i run? proform 750.

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Well im just at the end of building my motor and i just acquired a proform carburetor no choke vacuum advanced. Was wondering if anyone could help me figure out what jets to use. Here is my build

forged scat crank (3.48)
forged scat rods (5.7)
4 valve relief pistons, i think its -5 cc? quote me if im wrong.
felpro head gaskets 1003
Gasket Bore: 4.166
Comp Thickness: .041
Comp Volume: 9.1cc
patriot heads int190cc/cumb 64cc 2.02/1.60
Edelbrock air gap rpm.
Isky 284 mega cam
Cam Style Hydraulic flat tappet
Basic Operating RPM Range 2,600-6,900
Intake Duration at 050 inch Lift 236
Exhaust Duration at 050 inch Lift 236
Duration at 050 inch Lift 236 int./236 exh.
Advertised Intake Duration 284
Advertised Exhaust Duration 284
Advertised Duration 284 int./284 exh.
Intake Valve Lift with Factory Rocker Arm Ratio 0.510 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.510 in.
Valve Lift with Factory Rocker Arm Ratio 0.510 int./0.510 exh.
Lobe Separation (degrees) 106
Computer-Controlled Compatible No
Grind Number 284 Mega
comp cam magnum pushrods +.100 longer then stock.
Sanderson cc90-158 headers
dual borla xr-1 mufflers.

Anyone with windyno or what ever you use, can you see what hp this makes? i have no clue at all what it will make lol. And help me with my accelerator pump jets and all that selection i am a noob at tuning carb. Thanks for your time.
Prox.

i dont know what a proform carb is but iv`e sung the praises of a straight out of the box 750 holley many times .. are you driving this on the street ? ..tech should give you some HP #$ soon .. run what`s in the carb and tune later as you read plugs and see how it performs

Back in my youth (early days of the internal combustion hot rod) I would take the car out & run it up to 7g or so, if it didn't hit on all 8 all the way there, I would go back to the garage & drop in the next size bigger jets. Repeated the process until it sounded right. Lookin' back that could have been a receipt for burned pistons but it worked at the time.

I'd go the other way when the plugs looked black.

http://www.summitracing.com/parts/PRO-67205/ soorry my bad haha

I wonder if my motor will actually make some decent numbers with my combo.

I would start out with 72's in the primaries and 82's in the secondaries and tune from there.

i slapped in 70's/78's for my cam break in, After that i will fart around with tuning it proper, and looking at sparkplugs.