Exhaust megaphone angle - Dyno tested

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Test engine spec:

Modified smallport head w/ oversized valves
kelford beehive valve springs
shimless buckets
oversize toda pistons (1627cc)
bc rods
approx 12.5:1 compression
arp hardware throughout
toda oil pump gears
toda 3.7kg flywheel
52mm itb's
Garage4age Header and 3" exhaust
Link g4 ecu
Kelford 300 deg camshafts + VVTi

Видео Exhaust megaphone angle - Dyno tested канала Garage 4age