The Streetcar Shop

It’s an in-person, street / road tune for Holley EFI street cars. We dial in cold start, idle, drivability, and WOT in real-world conditions (just like the OEM's do) so your car starts, idles, and drives like it should on actual roads, not just on a dyno.

Both are available within our service radius. You can either:

• Drive / tow the car to us in Franklinville, NJ, or
• Choose mobile tuning if you’re within our local road-tuning radius (no extra fee; must be safe to road test near you).

You’ll confirm which option fits you in the booking form.

Yes. This is a street/road tune, not a “starts in the bay, never leaves the lot” tune. You must confirm:

• Brakes, tires, steering, and suspension are safe
• Lights work and the car is safe to drive on public roads
  If the car isn’t truly roadworthy, we’ll still do what we can, but there are no discounts if your prep isn’t done.

Plan on a half day for a standard Pro Tune. Some cars are faster, some need more road time. Your appointment window is blocked so we’re not rushing your calibration. You're paying for the outcome so we dont stop until the car is right.

Tuning will not fix mechanical problems. If we find issues (fuel pressure, vacuum leaks, ignition faults, etc.), we’ll pause, show you what’s wrong, and you can either:

• Fix it on the spot if it’s simple, or
• Rebook after repairs

Mechanical faults void the guarantee until they’re resolved, because no tune can overcome bad hardware.

If your car is mechanically sound and street legal, we guarantee:

• Stable idle
• Clean cold starts
• Smooth pulls

If we don’t hit that within 30 days of your tune, we keep working at no extra labor charge until it’s right, or we refund the labor fee.

Your Full Holley EFI Pro Tune includes one free seasonal revision within 12 months, as long as you haven’t changed any hardware. When the weather swings (hot to cold or cold to hot) and the car feels a little different, you simply book a Seasonal Revision through your portal.

If you’ve changed parts (cam, turbo, etc.), that’s a Retune, not a seasonal revision. This is a built-in follow-up so your car stays dialed all year without a surprise bill.

If your car is dialed and you never need the Seasonal Revision in the window, we’ll credit the value of the revision toward your next tune / retune, acting like a credit-based guarantee. ($300 Value)

You either get extra support now or extra value later.

We specialize in Holley EFI street applications (Terminator X, HP, Dominator, Sniper EFI conversions, etc.).

If you’re unsure, you can contact us first or list your exact setup on the intake form and we’ll confirm before your appointment.

Dyno testing is an option for existing Pro-Tune customers. We work with our dyno partner and their rate/schedule. The dyno is used for validation and refinement, not guesswork pulls.

Yes, remote support is an option for qualified cars and customers, typically after an in-person Pro-Tune or for minor revisions. It’s not a replacement for the in-person Pro-Tune if you’re within our radius.

Yes. You can reschedule up to 48 hours in advance without penalty. Inside 48 hours, your deposit is kept and the rest is refunded or applied per policy.
We are humans here so please reach out if something is seriously going on.

After booking you’ll:

1. Complete a vehicle info form and liability form (at least 24 hours before).
2. Follow a simple pre-tune checklist (brakes, tires, fluid leaks, etc.).
3. Show up with enough fuel and a reasonably clean, ready-to-drive car.

If the forms are not completed, your appointment may be cancelled and refunded automatically per the stated rules, because we can’t safely or efficiently tune without that info.