Hi guys, i am currently trying to finish a 1970 el camino that i've had for about two years. However, i am not that familiar in the mechanic department and would be honored to listen to your expert advise. i am currently dealing with a low end problem as i have a dz302 solid cam (350 SB) that is apparently too big (so i've been told). i have 3:55 gears and 2200-2700 stall converter. the ignition has only been upgraded to the pertronix ignitor II and not fully HEI. the carb is a 770 holley. any suggestions for more power off the line.i look forward to chating with you. Thanks!!!!