Thread: Holley Sniper 2300
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Old March 10th, 2022, 10:41 AM
Prowbar Prowbar is offline
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Default Re: Holley Sniper 2300
Looks excellent. Regarding the Holley conversion, this is something that one needs to pay attention to.

Quite surprised the intake does distribute the flow equally. However, with the sonic pulses that might be different. The only way to test that would be to make a spacer plate that mounts between the cylinder head and exhaust manifold and has 3 O2 sensors, connected to each runner, to measure the A/F ratio of each cylinder.

Another point regarding the A/F ratio of each cyl. would be the PCV valves tapping into runners 3 and 5 but not in runner 1. This should affect the A/F of 3 and 5 to some degree. Especially with a worn engine.

A centralized PCV would be better I think.
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