My dad wants to get a little over 300 HP out of his 350 in his '72 C10. We got a dyno program ( Dyno 2000 ) and by using stock configurations, with 8.5:1 comp ( my guess of what it is due to the Smog stuff for '72- up ), and with an auto calculated valve lift and valve size, 750 CFM carb ( has a q jet ) it comes out at 190 HP, which looking at the 9.00 comp 1969 350 rated at 255 HP, seems resonable. What are some good things to do W/O a compleate rebuild ( top end rebuild would be acceptable but nothing more ). I figured a set of 64cc heads and a mild cam w/ a set of headders, that seems to do OK on the dyno program which says it is accurate within 7%. Is a electric water pump recomended for street use? My dad saw a electric water pump that is ok to use for street use and it says it frees up 15 horse, I told him I would recomend agenst it but he still thinks it is a good idea, especially being that 15 horse would be eaten up by the extra load on the alt, and having to get an electronic fan because a mech wouldn't work. any suggestions? Thanks in advance
