Corvette C4 486hp 383cid

[Lonewolf36]

Nice Corvette but now that you have had the AFR heads for a while, how are they working out for you? Was the cost worth it? Do they really do what they advertise? I am looking to put a set on my 1987 Corvette, unless I decide to drop in the LS3 E-Rod engine. Yes, I am still running the L98 with modifications and now getting 350 hp up from the factory spec'd 245 hp. I will check for more of your videos.

[redhot916spd]

how much hp did it put to the wheels or what does it run at the dragstrip? Nice car!!

[oreilly335]

Idk if thats the cam that makes it sound like its sputtering,or you need to adjust the timing??

[DwnNvr]

Who's running WAY rich?!

[dreameagle]

why is it dumping raw gas into the exhaust?

[corvettels9]

@dreameagle Could be a large valve overlap, helps build backpressure and more backpressure=more torque

[BIGGREENLEAF1]

That's funny same thing happened to mine after dropping in my 383 LT-1 back in my 94. The RPM gauge is not accurate anymore, I noticed you have the same problem when you reved it the RPM's shot way past Red line, enough to have caused damage if it were accurate, plus the rev limiter did not kick in. The other reason I may be getting different RPM readings is I also went from 2.90 gears to 3.73, I know that my speedo had to be reprogrammed and now maybe the RPM gauge as well. Nice Car!!!

[racingpartsru]

Thanks, Now I build 427ci C4-90 6sp

[BIGGREENLEAF1]

No Thank you, it is very pleasing to know that you guys in Russia can appreciate a fine American sports car. Did you have those same problems getting an accurate RPM readout as I described in my first comment? How did you fix it if you did?

[dabo72]

It's called a tachometer. cool car though

[BIGGREENLEAF1]

I know it is called a tachometer, I was trying to stay under the 500 letter limit.

[1bad87vette]

@BIGGREENLEAF1 just some friendly advice bro, changing the rear gear doesnt affect your rpm gauge, it is being fed by the distributor. i had a 4.56 gear put in my 95 s10 because i lifted it 9 inches and it slowed it down..it affected my speedo but not my rpm gauge because i bought an aftermarket one and it read the same as the one in the dash. unless your tach isnt run off the distributor,it wont change it. i used to run 1500 rpm at 60 in the s10 and i run 2200 now. which isnt bad at all!

[fastskyr34]

American cars rule! nice work