What hp and torque am I making?
In think stock 1.88 J heads will support 400 Hp as will stock 2 1/4" duals. Flow on stock heads stall out around .480 lift so bigger valves or new heads won't help flow but may give you a bit more compression.
Here's Comps own XE268 dyno test using a 9:1 sb Chev 355 with nice Dart heads (i know) and I think more guys would like the XE262 it appears slightly better everywhere!
You have a real nice street engine as Rusty says!
In think stock 1.88 J heads will support 400 Hp as will stock 2 1/4" duals. Flow on stock heads stall out around .480 lift so bigger valves or new heads won't help flow but may give you a bit more compression.
Here's Comps own XE268 dyno test using a 9:1 sb Chev 355 with nice Dart heads (i know) and I think more guys would like the XE262 it appears slightly better everywhere!
You have a real nice street engine as Rusty says!