u can run a P28 u just have to get it chipped and tuned. u can also use a P72 aswell.

i have a P28 that im going to have it chipped with Hondata S300.

i would suggest u use ITR pistons, if u use CTR u are going to have to clay the motor to check for valve to piston clearence. with the ITR pistion u will be somewhere around 12-12.5:1, which is plenty. if u use the CTR u will have really high compression (almost 13+:1) which will not live off of pump gas, and will cost an arm and a leg to tune the engine properly so that u wont have any detenation.

but it might work in ur favor since ur using a B16 head which has larger combustion chanbers compared to the GSR and might bring down the compression some. but u would still have to clay the motor which is a very hard process which alot of people dont know how to do properly.

i also suggest that u add ACL main and rod bearings and the Golden Eagle LS/VTEC kit with the their head gasket.

also why dony u just buy a ITR flywheel instead if getting the B16 machined