So my current build is a 97", 9.74:1, with a 510 lift Andrews 37, high flow intake, Fat Cat, and a 30/70 belt ratio. I am looking at swapping the heads with some Fuel Moto Level B ported heads that have a bit more compression (9.98:1) and the larger valves (1.900/1.610). My current throttle body is the stock 46mm with 3.91 g/s injectors. With the new heads should I go to the 4.7 g/s injectors? I have also seen suggestions to go to the 50mm SE intake or an aftermarket 52mm intake with those injectors to be able to get more flow to the heads. I currently ride mostly in town but will do a couple 100-400 mile days a month on the highway fairly aggressive. Suggestions?

 

Also thinking of doing 1.745 roller rockers

 

The SE 1.725 Non rollers work fine. I used them with my 37's.
I also used 4.9 injectors with my 96" because I have a 40hp dryshot. It ran fine with them..