here is the info on his heads:
TSP 5.3L stage 2.5 heads, 220cc intake runner, 2.02/1.60 valves, they flow 312cfm, 63cc combustion chambers i believe which gives you 10.75:1 on a stock motor, prc dual valve springs, titanium retainers, yada yada.
here is the info on his heads:
TSP 5.3L stage 2.5 heads, 220cc intake runner, 2.02/1.60 valves, they flow 312cfm, 63cc combustion chambers i believe which gives you 10.75:1 on a stock motor, prc dual valve springs, titanium retainers, yada yada.