RPMTest 1Test 2Test 3Test 4Test 5
CBTCHpCBTCHpCBTCHpCBTCHpCBTCHp
2500305145326155347165360171364173
2750303158336176357187369193371194
3000297170338193364208373213377215
3250286177338209366226375232379234
3500277184233222365243273249378252
3750262187337241363259371265377269
4000246187343261369281378288385293
4250230186343278270299381309388314
4500214184340292365313380326388333
4750197179331299356322372336380344
5000180171376301341324362345371353
5250163163298298324324346346357357
5500146153279293306321330345339355
5750290317312341321352
6000271310295337302345

CBT= Corrected brake torque
CHp= Corrected horsepower
Horsepower and torque corrected to 29.92 inches/Hg barometer, 60 degrees, with dry air.

Test 1-Stock 318 with two-barrel carburetor, 1 5/8-inch Hedman headers, and 3-inch exhaust system with mufflers.
Test 2-Rebuilt 318 with 9.8:1 compression ratio, pocket-ported 318 heads, 340 cast-iron intake manifold, 625-cfm AVS carburetor, and Giles Performance single-pattern camshaft.
Test 3-Same as test 2, but with Giles Performance dual-pattern camshaft.
Test 4-Same as test 3, with ported 360 heads.
Test 5-Same as test 4, but with 360 cast-iron intake manifold and 750-cfm Thermo- Quad carb.

SOURCE
Giles Performance Products
7-06/-654-3903
Random Technology
7-70/-554-4242
randomtechnology.com
Hedman Hedders
16410 Manning Way
Cerritos
CA  90701
310-921-0404
www.hedman.com
Mopar Performance
Mopar.com