Originally Posted by
smiley
The std exhaust ports say read i wouldnt be on here talking shit without facts the specialist that carried out the examination stated this head cannot make anymore than 500 on those ports its pysically impossible
My own engine made 660bhp (740 on gas) with standard exhaust ports so that's not true. You just have to use more Boost. Open them up & you lose Torque. Julian & Mark are specialists who use small exhaust ports the others are perhaps not the specialists you think.