This is my first post but I'm a long time reader. Just got my first 351c off the dyno, this was my first real performance build. I was hoping to get closer to the 500hp mark. I was wondering if you could critique my build and see what I need to do to get that extra 50hp.
Short block: D2AE-CA 2 bolt bored .040 over
4MA crank ground .010
Stock rods with ARP bolts with counterweights smoothed up into a slight V
Block decked a little beyond zero, pistons protruded .010 out of hole
Moroso windage tray
Cam bearing restrictors in 1234 with the big passage to the #1 main blocked
Stock volume oil pump
Custom .052 head gasket to achieve .041 quench
Ported to flow 329 and 229@ .600
Ferrea 5000 stainless valves
springs, retainers and locks supplied with cam
springs measured #122 and #325
Harland Sharp roller rockers
5/16 .080 wall pushrods
Crower cool face EDM solid lifters
Camshaft: Erson E227242
overlap 71 degrees
intake opens 37 closes 69
exhaust closes 34 opens 82
Valve lift .588 intake and exhaust
duration at .050 Intake: 242 Exhaust: 246
overall Intake: 286 Exhaust: 246
Intake Centerline 106
Cam was installed "straight up" but found to be 2 degrees retarded
Edelbrock Torker, a really old one with the butterfly shaped plenum
hooker 1 3/4 headers
Msd 8477 pro billet distributor
Autolight 24's gapped at .030
All runs were made with 91 octane.
Most of my dyno time was eaten up chasing a strange lean fuel issue that turned out to be some alcohol and/or bad premium gas mixed together. So we didn't get to play with the timing much and all runs were taken at 28 degrees total.
Does this combo reflect the dyno sheet or is something off here?
I cant figure out how to make the picture bigger. It made 452hp at 6000rpm and 429ft lbs at 4600rpm.