[frankenvette]

I have a 383 with a Torker II single plane intake. It has always had a slight hesitation under normal street throttle, especially starting out in first slow. Anyway, I am running 15* initial and 34* all in at 3500rpm. The engine takes a little time to wind up, but performs outstanding in the higher rpm ranges. I was at Super Chevy today and a fellow claimed I showed ditch the single plane and replace it with a Air-Gap. He claimed that single plane doesn't perform until your between 3500 to 7000, where the Air-Gap would come in immediately, and be good to 6500. He says I could lower my intitial to 10-12, and completely eliminate the hesitation.

I have often thought about the single plane causing the hesitation, but am happy with the high end performance I get out of it. I don't do allot of hole shots, but enjoy winding it up.

Any input would be appreciated!

[spinn]

are you revving it to 7000?

i would try the rpm dual plane. i dont like single plane characteristics. yea the top end is superb, but you give up the grunt.

if your sporting 4.30 gears and a 3600 stall you probably wont notice the low end loss as much. if ya likey the single plane, tune it.

[Rick WI]

Your hesitation is a carb tuning issue. That being said it depends on your camshaft duration. Most likely it's not too wild, wild being 240+ at .050. Also most likely you'll be much happier with the Air Gap.

[HemmiGremmie]

Not knocking either intake, but have you ever noticed that the Torkers are always for sale and not usually going for to much.
I like dual plane intakes for the street, unless your running way steep gears or reving up a standard tranny. HG

[lluciano77]

The RPM Air Gap will make more top end power than the Torker II.

[bracketeer]

I used a Torker 2 with a Holley DP mech seconds. It had a pause at 2300 rpm. I was never able to get rid of it. The single plane manifolds prefer the annular discharge carbs. Since they start at 750 cfm, putting one on a 350 would probably not idle, so I went to the Airgap RPM. Good intake if you don't drive in winter.

[mikeweyman]

you should recurve your timig,get an advance kit and use the light and middle springs(1 of each)this will bring in the advance at about 2800 rpm. try initial timing of 12 and advanced at 36. any comments from the real experts????
i was told the weights in the kit are too soft, use only the two springs in the kit.

[lluciano77]

The more initial advance the better. Don't retard your timing unless your hear it pinging. I run 16o initial on my 11:1 engine.

[sam83k10]

If it's a daily driver get a performer or performer rpm. I just don't see the benefit of an airgap for the street. Maytbe on an oval track were the engine is getting constant airflow. Just a waste of 100 bucks if you ask me. Be prepered for a 10-15 min warmup for an airgap with Indiana's winter. I've got a Victor Jr. and it's horrible for cold weather. Buying a performer rpm next week.

[smallblocker2]

I'd go with the RPM air gap aswell. I've seen them make 520hp on 383-400ci at around 67-7000. I belive the torker2 is 2500-7000rpm range. I run an air gap, but it's on a little 327.

[lluciano77]

The Torker II is in the 2,500-6,500 range. According to Edelbrock it makes less top end than the RPM series.