When building a engine, you want all your modifications to work together.
THINGS TO CONSIDER:
The first thing to consider is whether the car is going to be driven on the street. With the highest octane of pump gas being 94, I would try to keep the compression ratio to about 9.5:1. If you're not sure of the compression ratio and can get a compression gage, you can figure it out by taking a compression reading. Then you can divide the reading you get by 14.7.
If you get a reading of 145 PSI. divided by 14.7 = 9.86:1
If your camshaft starts making power at 2500 rpm, you want to match your manifold range to that of the cam.
Torker manifolds are good from 2500 to 6500 rpm. This would be a good choice for the cam if used.It is a single plain manifold. Dual plain manifolds have a better bottom end torque about 1500 to 5000 rpm.
CID X PEAK RPM
440cu.in.x 6000 r.p.m. =2640000
divide by 3456
This gives you 763.8 cfm. A 780 holley will be fine. This will give you a good starting point for sizing your carburetor in cfm.
HEADERS ARE A MUST!!!!
If you start making power at 2500 rpm, thats the rpm you want to leave the line.
A 2500 stall speed converter is perfect for the application.
If the engine makes power to 6000 rpm, you should be at or close to 6000 rpm at the finish line.
This way all power will be used up by the end of the track. This should give you your best elapsed time.
TRAP SPEED CALCULATOR
*A 1" carburetor spacer plate is worth about .1 of a sec. and 1 MPH.
*Blocking the manifold heat is worth about .2 of a sec. about 2 MPH.
*Blocking the PCV valve is about .2 of a sec.
*Low restriction air cleaners are good for at least .1
*Opening up the headers could be worth up to .4 of a sec. and 3 MPH.
*Before making any run take all the extra weight you can out of the car.
Remove the jack and spare tire. Limit yourself to 1/2 tank of gas.
*Keep the engine as cool as possible by using water or ice to cool the intake manifold.Remember that for every 11 degrees increase in temperature 1% of horsepower is lost.
*Get the tires good and hot.After doing your burnout do a couple of dry hops to see if the tires are ready.
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