i have an 86 trans am 305 fi and i jus installed some comp cams 1.6 roller rockers i adjusted the valves and im hoping that it was the correct way i aint getting any ticking noise comin from the rockers and the car is smooth i have a jet stage 2 chip with the intake but my check engine light is on i tested it and it says that the o2 sensor is running lean any suggestions how to fix the problem thanks

 

If you don't mind what do roller rockers do, and why did you install 1.6 rockers? Is there a hp/tq increase?

 

yea get about a 15 hp increase http://store.summitracing.com/partde...w=32&N=700+115

 

roller rockers are going to make more noise than stock rockers. comparable to a sewing machine.

1.6 rrs open the valves a tad bit more because of the increased ratio of the rockers

 

15hp on a 305? How easy are they to install? Seems worth it.

 

so far ive needed two weekends jus makin sure i was careful of wat i was doing they are jus under the valve covers http://www.youtube.com/watch?v=pyFIiZwmsjs thats when i got the rockers right but still have the check engine light on might need a new fuel pump with bigger psi ratio not sure anyone that can help me with that please do