n20 and timming

Projected tip plugs will be fine up to a 125 shot, but even with a 100 shot i'd drop 1 heat range & set the gap at .030", start with a 100 shot, set timing at 28-29* from your 32*, depending on your cranking pressure & those KB190s, If the heads haven't been milled & the head gasket is .039", The compression should be around 10.3-10.4, If your cranking pressure is above 170, i'd run at least a 50/50 mix of premium & 110 with the nitrous, Tune on the 100 shot 1st., depending on the kit you use, the fuel jet might be higher then the Nos jet, like in the NOS kits, you can play with the fuel jet, start lowering it, I ran a Sniper, pills were 55 N/63 F (125 shot), I gained a solid 11 MPH in the 1/8 on these pills, make sure you have good fuel supply.