my motor is a 350 with 600cfm holley square bore vaccumm secondaries carb, 1970's high rise torquer intake the heads are 58cc 1.94 intake and 1.5 exhaust and have been ported and polished as big as u can go on these heads, has a L-79 327/350hp cam specs are ........ 222/222 @.050 dur. .447/.447 lift, high compression rings, rest of motor is stock, .... compression 10.25:1, hedman shorty hedders 1 5/8 to 3 inch collector with 87 camaro stock exhuast for the moment, imco high performance muffler, if ya need anything else let me know