go for it i just got my speedblaste heads , have not had the time to check them out fully , the chambers all are 65cc wil check the rest as well as flow on a bench later this week . bought mine from jegs we shall see what happens
Is it possible you got a set of bad heads , from visual inspection and checking chamber size all looks good so far on my heads , further inspection will tell , if they are fucked , i'll put up a video as well
