Miller Mountain High Performance

Miller Mountain High Performance HIGH PERFORMANCE MODIFICATIONS
Dyno Testing & Tuning
PA State Insp & Emissions
General Repairs

07/18/2026

Friday night racin' King of the Streets

07/16/2026

This beautiful 53 Chevy pickup came to us with the owner stating that since he bought it a few months ago he feels it doesn't make the power it should. We put it on the dyno to check and he was right. It made only 255whp and 2-3 pounds of boost. Logan proceeded to dig in and found several problems. After fixing some improperly installed items he gave it a full tune. It went home making 9 pounds of boost and 473whp. Definitely going to feel that improvement!

This beautiful 53 Chevy pickup came to us with the owner stating that since he bought it a few months ago he feels it do...
07/12/2026

This beautiful 53 Chevy pickup came to us with the owner stating that since he bought it a few months ago he feels it doesn't make the power it should. We put it on the dyno to check and he was right. It made only 255whp and 2-3 pounds of boost. Logan proceeded to dig in and found several problems. After fixing some improperly installed items he gave it a full tune. It went home making 9 pounds of boost and 473whp. Definitely going to feel that improvement!

06/20/2026

More hill climbing...


06/20/2026

Hill climbing...

Hill climb race day. Logan racing his Miata and supporting our racing customers.
06/20/2026

Hill climb race day. Logan racing his Miata and supporting our racing customers.

06/06/2026

You can do everything perfect and even the best parts can break.

Dyno Leader Board Update:Tom M and his 2009 G8 moves up the Naturally Aspirated side from 11th to 5th now making 481whp....
05/09/2026

Dyno Leader Board Update:
Tom M and his 2009 G8 moves up the Naturally Aspirated side from 11th to 5th now making 481whp.

Address

323 E High Street
Pottstown, PA
19464

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

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