1915 Turbo

[Bunky67]

I picked up a 1915 turbo a while back, it had a side draft but the carb was bad so the PO switched to Holley 390. After talking to some people they told me to boost reference the carb so we did that.

When I got the engine it had a 009, I switched to CB electronic and MSD Digital 6 plus because that's what was in my car...

We got the car to run but it needs some tuning.

My questions are
Spark plug gap we're at .025 I read the MSD can handle larger gaps in turbos. Do I leave it or increase?

Timing is at 24 degrees total. And distributor is unlocked.

[buguy]

I would think the gap is fine. There were 2 things that really helped me when I was drawthrough. First being a wideband O2 sensor. I would call that a must. Otherwise your just guessing....and your probably WRONG! Couple of us are using the PLX with success. Second was a Percy's adjust a jet. Let's you adjust on the fly without pulling the carb apart. For me, I had to have a huge accelerator pump shot to keep it from stumbling too. Way bigger than I ever expected to have.

[Bunky67]

Thanks for the reply. They do have a 50cc pump on the carburetor I thought that was a lot but maybe not ?

[buguy]

I had a 50 on mine. Not saying you will need it, but I did. What's nice is there are parts on every corner for the Holley

[madmike]

what fuel pump ya running?

[Bunky67]

Holley red

[madmike]

you may need a 'Blue' ? get that gauge it's a must have for tuning

[Bunky67]

I have a gauge and a regulator it's set at 5psi.

[madmike]

I meant an air/fuel ratio gauge i use a Innovate PLX

[Bunky67]

I have an older Edelbrock that was on my car and probably will update it.

[madmike]

I watch my gauge more then the Tach,, I have a purdy good tune on my 2276,, thanks to that gauge

[madmike]

I watch my gauge more then the Tach,, I have a purdy good tune on my 2276,, thanks to that gauge